Like many insects, periodical cicadas survive underground for years as nymphs before emerging. To breach the hard surface of the soil when it is time to emerge, the nymphs ______ their forelegs, which are modified for digging and tunneling.

3
reading

Which choice completes the text so that it conforms to the conventions of Standard English?

A

use

B

to use

C

having used

D

using

Correct Answer: A

Choice A is the best answer. The subject is "nymphs" (plural). The verb must agree with the plural subject. "Use" is the plural, simple present form.